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|| '20/06/17 Free swing || (6.28e-11)^※2^ || - || - || - || - || 2.98e-9 || [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=14557|#14557]] || || '20/06/17 Free swing || (6.28e-11)^※2^ || - || - || - || - || 2.98e-9 || [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=14555|#14555]] ||
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-----
== Actuator efficiencies ratio ==
|| '''Date''' || '''ITMX/BS''' || '''ITMY/BS''' || '''EMTX/ITMX''' || '''ETMY/ITMY''' || '''PRM/BS''' || '''klog''' ||
|| '20/02/18 || - || - || - || - || 11.6 || [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=13020|#13020]] ||
|| '20/04/21 || 0.09186 || 0.1037 || 0.8623 || 0.5912 || - || [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=14265|#14265]] ||
|| '20/06/17 || - || - || - || - || 47.5 || [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=14555|#14555]] ||
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Actuator efficiencies

Date

BS

ITMX

ITMY

ETMX

ETMY

PRM

klog

'19/11/26 Free swing

6.02e-11

-

1.71e-12※1

-

6.05e-12※1

-

#11754

'20/02/18 Free swing

(6.02e-11)※2

-

-

-

-

1.01e-9

#13020

'20/04/07 Pcal

-

-

-

4.66e-12

4.03e-12

-

#14073

'20/04/16 Pcal

-

-

-

4.71e-12

4.06e-12

-

#14194

'20/04/21 Free swing

5.63e-11

5.17e-12

5.84e-12

4.46e-12

3.45e-12

-

#14554, #14265

'20/04/21 Pcal

-

-

-

4.59e-12

3.91e-12

-

#14260

'20/06/16 Free swing

6.28e-11

-

-

-

-

-

#14557

'20/06/17 Free swing

(6.28e-11)※2

-

-

-

-

2.98e-9

#14555

  • f-2 m/ct

  • ※1: Before replacement of coil drivers
  • ※2: Referred to the previous measurement

Actuator efficiencies ratio

Date

ITMX/BS

ITMY/BS

EMTX/ITMX

ETMY/ITMY

PRM/BS

klog

'20/02/18

-

-

-

-

11.6

#13020

'20/04/21

0.09186

0.1037

0.8623

0.5912

-

#14265

'20/06/17

-

-

-

-

47.5

#14555

2nd Engineering run (2019/7/13)

contrast

optical gain (cnt/m)

Before

78.2%

2.63e8

After

64.3%

2.18e8

KAGRA/Subgroups/CAL/Free_swinging_michelson (last edited 2020-06-26 21:54:19 by TakahiroYamamoto)